0	0
0	1
1	0
1	1
1	2
1	3
1	4
1	5
1	6
1	7
1	8
1	9
1	10
1	11
1	12
1	13
1	14
1	15
1	16
1	17
1	18
1	19
1	20
1	21
1	22
1	23
1	24
1	25
1	26
1	27
1	28
1	29
1	30
1	31
1	32
1	33
1	34
1	35
1	36
1	37
2	0
2	1
2	2
3	0
3	1
4	0
4	1
5	0
5	1
5	2
6	0
6	1
7	0
7	1
8	0
8	1
8	2
9	0
9	1
9	2
10	0
10	1
11	0
11	1
11	2
11	3
12	0
12	1
12	2
12	3
12	4
13	0
13	1
13	2
13	3
14	0
14	1
14	2
14	3